Guide to STN Patent Databases – Basic Version - Paton - TU Ilmenau

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Guide to STN Patent Databases
Databases SEARCH DISPLAY Notes
AUPATFULL, CANPATFULL,
INPADOCDB, INPAFAMDB
IDT IDT Old Dutch patent classification
CA FTERM (FTCLA, CLASS (FTERM, Japanese Patent Classification (FTERMs)
JPCLA)
FTCLA, JPCLA)
DWPI DC
DC
Derwent Classification
MC
MC
Manual Codes (Electrical Indexing)
FCL (JPC),
FMCL, FSCL,
FCL (JPC) Japanese Patent classification (FI- and FTERMS)
FICL, FACL FTM (FTERM,
FTM (FTERM,
FTCLA, JPCLA)
FTCLA, JPCLA)
LITALERT Patents:
NCLR, NCLT
Trademarks:
NCLT
US Patent Classification USCL
TMCC, TMCT TMCC, TMCT US Patent Classification for trademarks
INPADOCDB, INPAFAMDB LCL LCL Locarno Classification for US Design Patents
* Classification information is not available in these databases: DGENE, PCTGEN and IMSPATENTS.
** IPC is a Super Search Field and comprises these search fields: ICA, ICI, ICM, ICS, IPCI, IPCR. It should be preferred in all
databases.
*** IPCI and IPCR are only display fields in DWPI.
**** In DWPI re-classification of the back-file/reload may affect the ICM or ICS fields. These fields should therefore not be used
any more, even for publications before 2006.
IPC8 details are not available: PATDD
Note: In some cases the IPC data of PCT applications are provided only with the WO-A3 publication (International
Search Report). As this type of publication is not entered in DWPI and CA the IPC codes are not available for these
publications. A code (at subclass level) is added by the database producer. WO-A3 publications are available in
INPADOCDB, INPAFAMDB.
18.2 Principles underlying a patent classification system
(Source: http://www.wipo.int/classifications/ipc/en/brochure/princip.htm)
- -
- German Patent Classification, which had a certain influence on the
IPC, employed this approach.
systems are of this nature.
- ited States of America and the United Kingdom patent classification
exclusively, relevant to certain branches of industry that it is natural to classify them under such branches. For
example, spinning, weaving and knitting mainly concern textiles and it is only natural to regard them as mainly
relevant to the textile industry. And indeed, they appear in the IPC
-oriented, it does, in fact, combine both approaches. It is the result
of experience acquired by persons whose daily task consists in comparing inventions for which patent protection is
claimed with similar inventions already disclosed in published patent documents. It is their judgment, based on
such experience, which plays a decisive role in choosing, in each case, between the two approaches and in
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